Created web/src/lib/dtc-fixtures.ts — the 5 DTC records displayed on
landing (P0420, P0301, P0171, P0442, P0700) now pull their factual fields
verbatim from backend/src/dtc_data.py:
• description_en (code title)
• category (pill)
• common_causes[] (probability bars)
• diagnostic_steps[] (numbered procedure)
• estimated_cost_min/max (real DB ranges, e.g. P0420 = $200–$1,500)
• labor_hours (real DB hours)
Narrative fields (simple_explanation, technical_explanation, urgency
label, when_monitored, set_condition, multi-code correlation, freeze-
frame data, readiness monitors) remain hardcoded as Tier 2/3 "AI would
generate this at runtime" demo content until AI Key is wired.
Visibility:
• SampleReport adds a "87-record OBD-II database" provenance line under
the section header
• Each Pro-view fault card now shows a green "DB REF ✓" badge next to
the existing CHARM ✓ badge
• Pro view has a small "DB" tag on the Probable Causes and Diagnostic
Steps column headers to distinguish DB-sourced fields
• DTCCarousel header gets the same "real DB" byline
• Total repair cost strip now reflects real summed DB ranges
Total cost was $490–$990 (hand-tuned). Now $240–$1,885 (P0420 200-1500 +
P0171 30-300 + P0442 10-85 = real database math).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
New sections:
• Testimonials (#reviews) — 3 persona quotes (DIY owner / shop owner /
dad) with star rating, 3 social-proof stats (4.9/5, 12k+ reports,
98% recommend), middle card on dark for rhythm
• FAQ (#faq) — 8 questions answered, accordion with first item open,
mailto helper link at the bottom
Hero features:
• Expanded from 2 to 4 cards (col-span 6 → 3): Vehicle-Specific +
Plain English + No App + Any Scanner. Covers more value props in
the same vertical space.
Footer:
• Killed the placeholder href="#" links. Product now points to real
sections (added Sample report + FAQ); Company/Legal collapsed to
real mailto links. No more dead anchors.
index.html:
• Full OG tags + Twitter summary_large_image using scene-done 16x9
as preview image
• theme-color for mobile browser chrome
• <link rel=preload> for the LCP mascot JPG
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The "Run a demo report" CTA in Showcase now scrolls to a complete sample —
vehicle bar, health score 78/100 (B+), AI summary, 3 prioritized issues
(P0420 / P0171 / P0496), total cost, and "Try with your car" / "Send to
mechanic" CTAs. Hardcoded data — no backend AI Key needed.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
